Adjustable lamp-carriage device.



0. M. SHECKQ AmusABLE LAMP CARRIAGE DEVICE.

APPLICATION FILEDy LULY 7. 1917.

1,257,1 31.' k11116111611 Feb. 19, 1918.

2 SHEETS-SHEET l..

O. M. SHECK. ADJUSTABLEl LAMP'CAHRIAGE DEVICE.

APPLICATION FILED .IULY'TI ISII.

wwwa Feb. y19", 1918.

2 SHEETS-SHEET 2.

@Sca/?, BEECH, QF CLEVELAND, GEIQ, ASSIGNOR 'CUO THE ARGUS LAM? AND.ELNCE llllaNY, OF CLEVELANB, GEIQ.

. Application filed July 7, iol?.

To all whom may concern:

Be it known that 1, OSCAR M. Simon, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of hio, haveinvented certain new and useful Improvements in AadjustableLamp-Carriage Devices, of which the following is a speciiication.

This invention relates to devices for supporting or mounting electriclamps in housings provided therefor and that,` are employed inconnection with motion picture j apparattts, stereopticons and certainstage lighting apparatus. In a prior application of mine bearing filingdate the ltith of April, 1917, and Serial No. 162,464, have describedand claimed a device of this character, and the present invention hasreference to specific improvements which simplify the construction andoperation with substantially the same objects in view, namely theprovision of a lamp carriage that is universally adjustable and selfcontained, thereby making it adaptable for placement and operation inlamp houses of any of the types in common use and that are alreadyinstalled. Another object of the invention is .to provide a simple,economical and eliieient construction embodying a suitably insulatedcontact member to which the lamp socket is attached, the said memberbeing` ladjustably and detachably connected With the carriage that isuniversally adjustable, and that is mounted on a bracket independent oibut adaptable to adjustable application in existing types of lamphouses. A prominent feature of the present invention is the meansprovided for vertical adjustment whereby the lamp carriaee maybe readilyand quickly elevated a su 'cient distance to allow the lamp socketmounting to be freely removed through the door opening of the lamphouse, this and the other features will hereinafter be described, andwith the above and other apparent objects in View .the inventionconsists in the construction, arrangement and combination of A theartsas described, and pointed out detinite y in the claims, reference beinghad to the accompanyinan drawings which are made a part of thespecification and in which similar characters are employed to designatesimilar parte,

Specification of Letters Eatcnt.

Patented Feb. iil, dilitio sensi ne. 179,276.

In the said drawings Figure 1 is a side elevation of the improveddevice.

Fig. 2 is a plan view.

Fig. 3 is av longitudinal central section of the device with they lampsocket in elevation and the upper portion broken away.

Fig. i .is a transverse section through the reiicctor and its supportingmember..

Fig. 5 is a front elevation of the improved device.

Figs. 6 and 7 are rear end, and side elevation, respectively of amodified form of construction, and Fig. 8 illustrates a horizontaladjusting' means, on` an enlarged scale.

As above stated the present invention is an improvemeiit on my formerlamp carringe, and certain parts of the construction are substantiallythe same. The main supporting bracket 1 on which the operative parts aremounted is similar in form, being made of sheet metal and provided withvertical end members 1a and 1' connected by longitudinal tie rods 2.Mounted on the tie rods 2 is a slidable cross bar 3 providedwithbearing' sleeves 3a. Two vertical rods 4 are attached to the crossbar 3, and mounted on these vertical rods is a cross-head 5 providedwith vertical bearing sleeves 5a. r:he lamp carriage bracket 6 is firmly.attached to the cross-head 5 and is therefore movable therewith. Thebracket 6 has attached thereto contact ways 7 and 7, being insulatedfrom said bracket by the members S. The lamp socket 9 is attached to theinsulated block 10 which carries the metallic members 11 and lla, saidmembers bearing on the inclined faces ofthe ways 7 and 7a and held in'contact. therewith by the spring members 12 and `12f A buttress member13 is attached to the bracket 6 and provides an abutment for the screw14. The screw 14 is threaded in the block 1() and operates conjointlywith the buttress i3 to provide transverse adjustment for the lamp whichis inserted in the socket 9. said socket being seated on the block i0."Electric operative connections are provided from the lamp socket to themembers and 7a.

rl`he construction thus 4far described is similar to that of my formerappiicatien above referred to., and l will new describe the constructionand arrangement of the elements but which cooperate With the other partsto produce theldesired,

" accommodate the guide 15, as best shown in yFig.l 3, and 1n theembodiment asvshown a guide :plate 16 is attached to the cross-head 5and has a bearing on both the upper and lower faces of the memberl-l Anoperating rod 17 is firmly attached to the cross bar 3 and extendslongitudinally and medially through the'vertical bracket member 1b, `be-,ing free to longitudinally move therethrough.

yao

It will be seen that when the bar 3'is moved in the direction of arrowFig. 3, said bar being actuated by the rod 17 a vertical movement isimparted to the cross-head 5 owing to its mounting on the verticalmembers '4 and its bearing on the inclined guide 15. Ares-ult of thiscombined movement is shown by dotted lines in Fig. 1. The reverse orforward movement of rod 17 causes the cross-head 5. to travel'downwardonthe vertical rods 4, due tothe bearing of member 16 on the undersideof guide member 15, and said downward movement is limited by the contactof member 5 with member 3. The lamp carriage being supported on thecrosshead 5 travels with said cross-head.

An alternative or modified construction is illustrated in Figs. 6 and 7,wherein spiral springs 20 are mounted on the vertical menibers 4, saidsprings being confined under compress-gd tensiombetWeen the cross-head 5and a crss member 21. In this construction the-springs 20 are compressedby the upward movement of member 5, and the expansive force-:ef saidsprings carries the member 5'down""1rd on the incline l5 when the member3 isapushed forward.

The cross 'member 21 is mounted on the members 4 andis verticallyadjustable thereon, a Vset screw 22 being provided for fixing 'saidcross member in the desired position. A socket 23 is attached to thecross member 2l and provides a suitable receptacle for the refiector 24.The reflector socket may be permanently attached to member 21, but it ispreferably made adjustable as shown, to provide for focusing vto meetirregularities in lamp construction.

Provision is made for longitudinal adjustment of'the entire structureabove described relative to the lamp house, and to this end the tie rods2 are extended a predetermined distance outside t-he bracket 1 and havethreaded on their terminals spear head members 25 adapted to pointbearings in buttlrlesses '26. The members26may be the walls' of the lamphouse or they-may be auxiliary vertical plates attachedto the floorofthe house. It will be seen that the ...ae-rae' threaded connection ofthe spear heads 25'. co-acting with lthe point bearings providesvthe-'desired longitudinal adjustment of the main bracket 1. Forconvenience in this operation I prefer a rig-ht and rleft hand thread,respectively on the tie rod terminals,

as shown in Fig. 8, although this is not an imperative construction aswill readily be understood. It will also be understood' that there maybe changes in the details of construction without departure from thespirit of the invention or the scope of the claims.

'What I claim and desire to secure by Letters Patent is.

1. In a device for the purpose set forth, the eombinationof a supportingmember sli-dably mounted on xed horizontal guides; vertical guidemembersattached to said supporting member; a lamp carriage supportslidably mounted on said vertical guides;

Ian inclined guide member on which said carriage support is seated, therelative arrangement of the inclined guide and the vertical guides beingsuch that horizontal movement of the first named supporting member willcause a vertical movement of the carriage support through itsl bearingon the inclined guide. v

2. An adiustablfwliiiiw'arriage support comprising a main supportingbracket, a horizontally slidable frame'mounted in said bracket on fixedguides connected therewith, vertical guides attached to said slidableframe, a lamp supportingbracket slidably i mounted on said verticalguides, an inclined guide member on which saidllamp supporting bracketbears, attached to the main bracket, and means for actuating the horilzontally slidable frame therebv imparting a vertical movement to thelamp carri-age support through its bearing on the inclined guide.

` 3. An adjustable lamp carriage support, comprising u main supportingbracket, a horizontally slidable frame'mounted in said bracket on fixedguides connected therewith, vertical guides attached to said slidableframe, a lamp `supporting bracket slidably mounted on Saidverticalgudes, an inclined guide member .on which said lamp supportingbracket is seated, means for retaining said lamp supporting bracket soseated, and means for actuating the horizontally slidable frame therebyimparting a vertical movement tothe lamp carriage support through itsbearing on the inclined guide.

4. In a. device for the .ficctor member mounted 4on said verticalguides; a lamp supporting bracket shdably mounted on said verticalguides; an inclined purpose set 4 forth, the combination of a mainsupport- Lnge:

guides; a, lamp supporting Abracket; slidably;

mounted on said vertical guides; an adjustable lamp socket mounted onsaid bracket; an inclined guide member on which said lamp 'supportingbracket is seated; means for retaining said lamp supporting bracket soseated; and means for actuating the horizontally slidable frame.

V 6. In an adjustable lamp carriage support', the combination of a mainsupporting bracket; guide rods attached to and extending longitudinallythrough said bracket; ad-A justing members threaded on the terminals ofsaidrods; buttresses on which said adjusting members bear; a, lamp suportin carriage mounted on said guide r s; an means for vertically andhorizontally adjusting said carriage relative to the main supportingbracket.

In an adjustable lamp carriage support, the combination of a mainsupporting bracket; guide rods attached to andextending longitudinallythrough said bracket; ad-4 justing members threaded on the terminals ofsaid rods; buttresses on which said adjusting members bear'y a bracketmember slidably mounted on said longitudinal guide rods; vertical guidein mbers attached to said slidable bracket@ alamp lcarriage supportslidably mounted on said vertical guides; an inclined guide member onwhich said carriage support is seated and means for actuating thehorizontally slidable bracket thereby imparting a' vertical mover mentto the lamp carriage support through its bearing on the inclined uide. V

In testimonywhereof I a x my signature. OSCAR M. SHECK..

Witness

